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Angelos Chalaris
2020-04-20 13:34:04 +03:00
parent d35dab24c3
commit 3077d4c71f
27 changed files with 141 additions and 386 deletions
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snippets/hover-underline-animation.md
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@ -16,7 +16,7 @@ Creates an animated underline effect when the text is hovered over.
color: #0087ca;
}
.hover-underline-animation::after {
.hover-underline-animation:after {
content: '';
position: absolute;
width: 100%;
@ -29,7 +29,7 @@ Creates an animated underline effect when the text is hovered over.
transition: transform 0.25s ease-out;
}
.hover-underline-animation:hover::after {
.hover-underline-animation:hover:after {
transform: scaleX(1);
transform-origin: bottom left;
}
@ -37,18 +37,15 @@ Creates an animated underline effect when the text is hovered over.
#### Explanation
1. `display: inline-block` makes the block `p` an `inline-block` to prevent the underline from spanning the entire parent width rather than just the content (text).
2. `position: relative` on the element establishes a Cartesian positioning context for pseudo-elements.
3. `::after` defines a pseudo-element.
4. `position: absolute` takes the pseudo element out of the flow of the document and positions it in relation to the parent.
5. `width: 100%` ensures the pseudo-element spans the entire width of the text block.
6. `transform: scaleX(0)` initially scales the pseudo element to 0 so it has no width and is not visible.
7. `bottom: 0` and `left: 0` position it to the bottom left of the block.
8. `transition: transform 0.25s ease-out` means changes to `transform` will be transitioned over 0.25 seconds with an `ease-out` timing function.
9. `transform-origin: bottom right` means the transform anchor point is positioned at the bottom right of the block.
10. `:hover::after` then uses `scaleX(1)` to transition the width to 100%, then changes the `transform-origin` to `bottom left` so that the anchor point is reversed, allowing it transition out in the other direction when hovered off.
- `display: inline-block` makes the block `p` an `inline-block` to prevent the underline from spanning the entire parent width rather than just the content (text).
- `position: relative` on the element establishes a Cartesian positioning context for pseudo-elements.
- `:after` defines a pseudo-element.
- `position: absolute` takes the pseudo element out of the flow of the document and positions it in relation to the parent.
- `width: 100%` ensures the pseudo-element spans the entire width of the text block.
- `transform: scaleX(0)` initially scales the pseudo element to 0 so it has no width and is not visible.
- `bottom: 0` and `left: 0` position it to the bottom left of the block.
- `transition: transform 0.25s ease-out` means changes to `transform` will be transitioned over 0.25 seconds with an `ease-out` timing function.
- `transform-origin: bottom right` means the transform anchor point is positioned at the bottom right of the block.
- `:hover:after` then uses `scaleX(1)` to transition the width to 100%, then changes the `transform-origin` to `bottom left` so that the anchor point is reversed, allowing it transition out in the other direction when hovered off.
#### Browser support
- https://caniuse.com/#feat=transforms2d
- https://caniuse.com/#feat=css-transitions